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Q.

The length, breadth and thickness of a block are given by l=12 cm, b = 6 cm and t=2.45 cm. The volume of the block according to the idea of significant figures should be

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a

1 x 102 cm3

b

2x 102 cm3

c

1.763x 102 cm3

d

none of these

answer is B.

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Detailed Solution

V = Ixbxt∴V=12×6×2⋅45=176⋅4cm3=1⋅764×102cm3There is one significant figure in breadth. Hence, thevolume in significant figure will be 2×102cm3.
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